At least once a week I get a message from someone saying: "I'm pregnant! How should I change my training programme" You don't need to change ANYTHING. In the beginning. Exercise in the first trimester doesn't increase OR decrease the risk of miscarriage or complications or birth outcomes in any way. And exercising in your FIRST trimester massively increases the chances that you will exercise in the second and third trimesters - it’s much easier to “keep going” than it is to “